-
какой объем (н.у.) кислорода потребуется для полного сгорания ацетилена полученого из 120 г карбида кальция содержащего 15% примесей?
-
Предмет:
Химия -
Автор:
emelychambers - 5 лет назад
-
Ответы 1
-
Держи. Задачу вычислил правильно, несколько раз проверил)
-
Автор:
kittyhood - 5 лет назад
-
0
-
-
Добавить свой ответ
Еще вопросы
-
в семье 6 мальчиков и 8 девочек,на сколько в семье больше девочек чем мальчиков.
-
Предмет:
Математика -
Автор:
weavergwfj - 5 лет назад
-
Ответов:
2 -
Смотреть
-
- к 848 г раствора с массовой долей фосфата калия 5% добавили избыток раствора хлорида кальция.Определите массу выпавшего осадка
-
1 There is a force ____ powerful than the fundamental forces of nature: time.
a) a bit
b) much
c) more
d) most
2 I couldn’t open the garage door. – You ____ very hard; it was not locked.
a) must have tried
b) can’t have tried
c) should have tried
d) could try
3 We have a team of detectives working hard to ____ the identity of the man and establish what exactly has happened.
a) learn
b) get to know
c) recognize
d) find out
4 If I ever have financial difficulties, I know I ____ for help.
a) always can fall on my brother
b) can always fall on my brother
c) can always turn on my brother
d) can always fall to my brother
5 Life is really simple, but we insist ____ it complicated.
a) on making
b) in making
c) on being made
d) to make
6 Xesspe ____ the first human in almost a thousand years to recognize the designs of the Nazca lines.
a) may have been
b) can have been
c) must not be
d) must has been
7 ____ anything to eat, she was forced to beg.
a) her not having
b) as having not
c) not having
d) her having not
8 More research funding ____ if people were more aware of the disease.
a) could secure
b) could have been secured
c) could have secured
d) could be secured
9 I wish I ____ straight hair; curly hair is so much nicer.
a) had
b) didn’t have
c) had had
d) had got
10 Essex Police say more than 40 drivers are to be charged for using a mobile phone while driving after they were seen ____ a crash on the motorway.
a) to be photographed
b) having been photographed
c) photographing
d) having photographed
-
Предмет:
Английский язык -
Автор:
julian890 - 5 лет назад
-
Ответов:
1 -
Смотреть
-
-
1. Linguists warn that conservative attitudes toward loanwords and grammatical changes often hamper efforts to preserve ______________ languages. (DANGER)
2. Luck that determines how successful or talented family members are is not always mentioned where talent is concerned but plays an______________ part. (DOUBT)
3. You cannot have thunder without lightning because thunder is the sound of outspreading pressure waves from the sudden ______________ of the air along a lightning flash. (HEAT)
4. Having had a ______________ career with plenty of ups and occasional downs, the athlete has announced his retirement from professional sport due to an eye injury. (TERROR)
5. Apparently we humans share 98% of our genes with chimpanzees; indeed, they are our closest relative in the animal ______________.(KING)
-
Предмет:
Английский язык -
Автор:
salomébjmg - 5 лет назад
-
Ответов:
1 -
Смотреть
-
Топ пользователей
-
Fedoseewa27
35922 -
Askold
2792 -
Pikachu
2228 -
hobbesbowers
2116 -
kaylynnbarron676
1818 -
女fei
1240 -
yulia-kaplina
1158 -
Poinntt
946 -
Bars
930 -
Queenmagic18
758
How much to ban the user?
1 hour
1 day
100 years